Servo actuator hydraulic protection module structure
A technology of servo actuator and hydraulic protection, which is applied in the direction of fluid pressure actuation device, fluid pressure actuation system safety, mechanical equipment, etc., and can solve problems such as cylinder elevation and servo actuator damage
Active Publication Date: 2016-04-27
无锡市恒盛科技有限公司
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Problems solved by technology
[0002] The existing servo actuators are basically directly controlled by the electro-hydraulic servo valve. Since the electro-hydraulic servo valve directly controls the servo actuator, it is very easy to cause the overload drive inside the servo actuator, which makes the servo actuator The oil cylinder in the actuator keeps rising, which may easily cause damage to the servo actuator
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[0007] See figure 1 , which includes a servo actuator 1 and an electro-hydraulic servo valve 6, the two cavities of the servo actuator 1 are respectively connected to the two load outlets of the electro-hydraulic servo valve 6, and the oil inlet pipe 7 is connected to the oil inlet of the electro-hydraulic servo valve 6, The oil outlet of the electro-hydraulic servo valve 6 is connected to the oil outlet pipe 8, and the pipeline connecting the two cavities of the servo actuator 1 and the two load outlets of the electro-hydraulic servo valve 6 is provided with a hydraulic control check valve 5, and the oil inlet pipe 7 is connected to the oil inlet port of electromagnetic reversing valve 2, and the oil outlet port of electromagnetic reversing valve 2 is connected to oil outlet pipe 8. The pipeline between the two cavities of servo actuator 1 and hydraulic control check valve 5 is externally connected with a hydraulic The inlet of the directional control valve 4, the outlet of t...
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The invention provides a hydraulic protection modular structure of a servo actuator, and the hydraulic protection modular structure can effectively protect the servo actuator so that an oil cylinder of the servo actuator does not constantly rise so as to ensure the normal use of the servo actuator. The modular structure comprises the servo actuator and an electro-hydraulic servo valve, wherein two cavities of the servo actuator are respectively connected with two load outlets of the electro-hydraulic servo valve; and an oil inlet pipe is connected with the oil inlet of the electro-hydraulic servo valve, and an oil outlet pipe is connected with the oil outlet of the electro-hydraulic servo valve. The modular structure is characterized by also comprising an electromagnetic directional valve, a one-way throttle valve, a hydraulic directional control valve and a hydraulic-operated check valve, wherein the hydraulic-operated check valve is arranged in a connecting pipeline of the two cavities of the servo actuator and the two load outlets of the electro-hydraulic servo valve; the oil inlet pipe is connected with the oil inlet of the electromagnetic directional valve, and the oil outlet of the electromagnetic directional valve is connected with the oil outlet pipe; and the inlet of the hydraulic directional control valve is connected outside a pipeline between the two cavities of the servo actuator and the hydraulic-operated check valve.
Description
technical field [0001] The invention relates to the technical field of hydraulic protection of servo actuators, in particular to a hydraulic protection module structure of servo actuators. Background technique [0002] The existing servo actuators are basically directly controlled by the electro-hydraulic servo valve. Since the electro-hydraulic servo valve directly controls the servo actuator, it is very easy to cause the overload drive inside the servo actuator, which makes the servo actuator If the oil cylinder in the actuator keeps rising, it is easy to cause damage to the servo actuator. Contents of the invention [0003] In view of the above problems, the present invention provides a hydraulic protection module structure for the servo actuator, which can effectively protect the servo actuator, so that the oil cylinder of the servo actuator will not continuously rise, ensuring the normal use of the servo actuator. [0004] The hydraulic protection module structure of...
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IPC IPC(8): F15B20/00
Inventor 朱晓兵
Owner 无锡市恒盛科技有限公司